MuchBoost 4.2FSI Upgraded Turbochargers with Enlarged Billet Compressor Wheels and Enlarged Turbine Wheels. They are based on genuine BorgWarner turbochargers, which means that the installation is 100% P&P. The turbochargers are meant to work with Audi RS6 C5 with the BCY 450-480HP engine. The turbo delivers up to 146% of stock power (210 HP extra) which means […]